创新不仅仅是创造新事物，而是让现有的事物变得更好。
Innovation is not just about creating something new, but about making what exists better.
杰夫·贝索斯接受了莱克斯·弗里德曼的播客采访
测量可测量的，并使不可测量的成为可测量的。
"Randomized experiments are the gold standard for causal inference, but they are not always feasible."
Avoid extreme ideologies because they rob you of your sanity.
The night is a great teacher, but the stars are its lessons.